2017高考英语备考复习课件：情态动词_高考复习指南

2017高考英语备考复习课件：情态动词

　　________ late for yesterday's class meeting，as it was so important.

　　A．couldn't be

　　B．shouldn't be

　　C．mustn't have been

　　D．oughtn't to have been 解析：oughtn't to have done同于shouldn't have done表示“不该做某事而做了”。由句意知D合题意。答案：D (3)“could＋have＋v.ed”意为“本能够，本可以”，表示过去本可以做某事，但却没做。这样考过 (江苏)He did not regret saying what he did but felt that he ________ it differently. A．could express

　　B．would express C．could have expressed

　　D．must have expressed 解析：句意：他不后悔说了他做了什么，而认为他本能够用不同的方式表达。could express 能够表达；would express 要表达；could have expressed 本来能够表达；must have expressed(表推测)肯定已经表达。答案：C (4)“needn't＋have＋v.ed”意为“本没有必要”，表示过去本没有必要做某事，但却做了。注意：“need not＋have＋v.ed”表示过去本不必做但却做了的事；“did not need to＋动词原形”表示过去不必做某事而实际上也没有做。如：

　　She need not have come yesterday.她昨天本不必要来的。(但却来了)

　　She didn't need to come yesterday.她昨天不必来。(实际上也没来) 三、固定用法 can't too...无论怎样也不过分，越……越好；can't help doing情不自禁做某事；may/might as well还是做……的好；would rather...than宁愿做……也不愿做……。这样考过 (龙岩质检)Traffic safety is so important that everyone ________ take safety measures too seriously. A．shouldn't